-Refer to the Figure

question 10

Multiple Choice

-Refer to the figure.Why is it more difficult to measure the distances to globular clusters (which contain RR Lyrae stars) than the distances to open clusters (which contain Cepheids) ?

• A)RR Lyrae stars are dimmer and harder to see.
• B)RR Lyrae stars pulsate so fast that they can't be measured.
• C)RR Lyrae stars are further away than Cepheids.
• D)RR Lyrae stars do not have a relationship between period and luminosity.

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Definitions:

Diaphoresis

Excessive sweating often associated with an underlying medical condition or physical exertion.

Deodorant

A substance applied to the body, most commonly the underarms, to prevent or mask body odor caused by the bacterial breakdown of perspiration.

Ear Mold

A custom-fitted device that is inserted in the ear canal to protect the ear or to secure hearing aids in place.

Hearing Aid

An electronic device designed to amplify sound for people with hearing loss.